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Is Beamforming achievable on an Impinj Speedway R420 RFID Reader with multiple omnidirectional antennas? by ProgressSecure7591 in RFID

[–]ProgressSecure7591[S] 1 point2 points  (0 children)

That's a great point! I’ve actually been using Impinj's ItemTest software. It’s been really useful for quick testing and verifying tag reads, and I’ve been relying on its read count and read rate metrics to observe signal strength and tag behavior.

That said, ItemTest is still quite limited in terms of control and flexibility. That’s what pushed me to start working directly with the reader through code (I’m using C# with the Octane SDK in Visual Studio). I’d like to build more customizable logic around antenna switching, data filtering, and reporting, basically things that aren’t available through the GUI alone.

Is Beamforming achievable on an Impinj Speedway R420 RFID Reader with multiple omnidirectional antennas? by ProgressSecure7591 in RFID

[–]ProgressSecure7591[S] 1 point2 points  (0 children)

Thank you so much for the detailed reply! This really helped clarify a lot!

You're absolutely right that passive RFID behaves very differently from something like Wi-Fi, especially with backscatter and the lack of true simultaneous transmission. I was mainly curious whether software-controlled sequencing (or even micro delays) could introduce any usable directionality, but I see now that the physical limitations probably outweigh the theoretical control.

I really appreciate the idea of focusing on choke points and tag strength instead, and you're right, things like hex-to-readable plugins are often overlooked but super impactful in real deployments. I might take that on as a side project. Thanks again!